Hiya,
You may well have explored these long ago, but I’ve had success with this nyquist plug-in (and its sister tool, the declicker, which I find insanely useful). Links to the most recent versions at the bottom of the first post. Might do for a while until you find something fancier? There’s lots of advice in this thread as to which settings to alter.
https://forum.audacityteam.org/t/updated-de-clicker-and-new-de-esser-for-speech/34283/1